Online remediation of a cooling water circuit

The cooling water system of a power generation site had become contaminated with hydrocarbon pollution.

This circuit, with a volume of 180 m³ (234 yd³), had a total oil and grease concentration of 320 mg/l with a maximum target of 10 mg/l, i.e. a target decrease of 97 %. The objective was to intervene effectively on this circuit without stopping production.

CTP environnement's solution consisted of diverting a fraction of the flow to a temporary treatment plant, then reinjecting the treated water into the refrigeration circuit.

The diverted flow, of the order of 1 m³/h (4,4 gpm), is insignificant for cooling; this meant the operation was possible without disruption to the system.

The temporary treatment system deployed by CTP environnement consisted of an oil separator, a bag filtration stage, and a finalising stage on activated carbon.

This system allows a widespread reduction of the total, soluble and insoluble, oils and grease.

The installation, fully automated and secure, also allowed an exceptionally economical and continuous 24h/24, 7d/7 treatment.

Key project figures :

575 hours of treatment
60 litres of oil recovered and recoverable
99% reduction on a target of 97%

News

16th April 2025

Victory at the V.I.E Grand Prix Americas 2025

To accelerate its international growth, CTP environnement group has embraced the V.I.E program, led by Business France and backed by the French government. For several years, qualified young talents have been strengthening our teams in subsidiaries located in Singapore, Canada, the USA, and more recently, the United Kingdom.

In our American subsidiary based in Houston, Neyl stood out brilliantly by winning first place at the V.I.E Grand Prix Americas 2025, an award that recognized 4 winners out of 97 candidates. His original and impactful video—highlighting France as THE go-to destination for innovation and investment—made all the difference.

News

31st March 2025

INTERSOL 2025

We took part for the first time in the 24th edition of INTERSOL, the International Congress and Exhibition on Soils, Sediments and Water.

Our teams came to meet the leading players in the field of polluted sites and soils (PSS), to compare their challenges and solutions, and to respond in the best possible way.

News

26th March 2025

CTP environnement joins the 2nd French "Accélérateur Nucléaire" programme

BPI France has been supporting our development for many years, even before the creation of our nuclear division in 2015.

10 years later, on the strength of our recent experience, which has been recognised by major players in the sector, we decided to join their Nuclear Acceleration Programme, launched in 2024.